title: The Dimensions of Mastery Questionnaire in school-aged children with congenital hemiplegia: test-retest reproducibility and parent-child concordance.
abstract: OBJECTIVE
  To examine internal consistency, test-retest reproducibility, and parent-child concordance of the Dimensions of Mastery Questionnaire 17.0 (DMQ) in school-aged children with congenital hemiplegia.
  
  
  METHODS
  Forty-two children (8.24 ± 2.38 years, Manual Ability Classification System (MACS) I = 23, MACS II = 19) and their parents completed the DMQ, and a subset on two occasions 2-30 days apart (n = 27). Cronbach's alpha (α), intraclass correlation coefficients (ICCs), standard error of measurement (SEM), and 95% limits of agreement were calculated.
  
  
  RESULTS
  Internal consistency for child self-report was variable (α = 0.57-0.90). Cronbach's alphas for parent proxy report were good (α = 0.69-0.86). Test-retest reproducibility for instrumental aspect (ICC = 0.86) and total motivation (ICC = 0.84) were excellent with subscales ranging from 0.70 to 0.91. The SEM for total motivation was 0.23 points. Parent-child concordance was poor across all scores (ICC = -0.04 to 0.42) with a large SEM (0.50-0.91).
  
  
  CONCLUSIONS
  The DMQ parent report has good test-retest reproducibility for subscales, instrumental, and total motivation scores in school-aged children with congenital hemiplegia. Parent-child concordance was low highlighting differences in individual and contextual perspectives.
authors.affiliation: 1Queensland Cerebral Palsy and Rehabilitation Research Centre, School of Medicine, The University of Queensland, Royal Children's Hospital , Brisbane , Australia.
authors.forename: Laura
authors.initials: L
authors.lastname: Miller
authors.forename: Kerry
authors.initials: K
authors.lastname: Marnane
authors.forename: Jenny
authors.initials: J
authors.lastname: Ziviani
authors.forename: Roslyn Nancy
authors.initials: RN
authors.lastname: Boyd
mesh_terms: D000328:Adult; D002547:Cerebral Palsy / Q000534:rehabilitation*; D002648:Child; D005260:Female; D006429:Hemiplegia / Q000151:congenital* / Q000534:rehabilitation*; D006801:Humans; D008297:Male; D009042:Motivation; D010290:Parents; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires